皮皮学，免费搜题
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搜题
【判断题】
ctrl+I命令将图像的颜色去掉,将色彩图像转为灰度图。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】—I cleaned my room last night,____you? —I did my homework.
A.
What
B.
How
C.
What about
D.
What like
【多选题】在贸易条约和协定中通常适用的法律待遇条款是( )
A.
最惠国待遇条款
B.
国民待遇条款
C.
促进与保护投资条款
D.
促进与保护投资条款
E.
对发展中国家的特殊优惠条款
【单选题】I cleaned my classroom ___________.
A.
with three hours
B.
three hours ago
C.
in three hours
D.
three hours before
【单选题】______ Saturday morning, I cleaned my room. ______ the afternoon I did some reading. [ ]
A.
On; on
B.
In; in
C.
On; in
D.
In;on
【单选题】I cleaned my classroom __________
A.
three hours before
B.
three hours ago
C.
in three hours
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